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passive or fans

Discussion in 'Grow Room Design/Setup' started by 2cent420, Apr 9, 2021.

  1. #1 2cent420, Apr 9, 2021
    Tryin to not use my other fan. That wud be 3 fans on.

    My 8 inch on filter 1000cmf
    Reductions bends filter 700cmf

    I have 2x 8 inch intake holes.
    Is that enough the rule says 3 or 4 times more holes than your intake
    Does that mean my 2 8inch isnt enough...


    So better swap to my 6inch ducting and use my 6 inch fan ?

    Lighta are in seperate coolhood fan setup
     
  2. #2 Vee, Apr 9, 2021
    • Like Like x 1
  3. #3 CO BlueGreen, Apr 9, 2021
    Switching to led from hps really helped me with temperature maintenance. That will be a good move for a great Grower!
     
  4. #4 2cent420, Apr 9, 2021
    My hoods are 1200watt magnums there on a 6inch 400cmf in and out.

    This is literatly just the tent its self.
    So i have a 8inch extractor on a filter.and smscom at 80%
    So she gone from 1000 to filter 850 bends 700 and 80% max so like 500cmf. And when cool down to 40% which is 300 and this is most the time i run at 21c.

    And nornaly i use a 6inch 400cmf intake fan. However when on low mode this fan makes posative preassure even on smscom.


    Jusy wondered if 2x 8inch passives would replace it . Seems like it would however the tent collappses on full power

    Cant win..

    Gona try 6inch intake 1 vent passive the other and increase the airmovement.

    Will be doing double air changes than reccomended tho. Co2 will be low .

    Hmhmmmmmhmh

    Putting the 6 on the 8inch filter instead ?
    Run 2 passive 8 then.
    Keep the 8 incase heatwaves

    Fuck knows
     

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